Finding the Fourth Proportional to 2,912,539,041.74, 4,368,889,961.37 and 947,392,129.85
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Solution
The fourth proportional to 2,912,539,041.74, 4,368,889,961.37 and 947,392,129.85 is: 1,421,114,672.20
Step by Step Solution
- Step 1: Write the proportion equation
2,912,539,041.74 : 4,368,889,961.37 = 947,392,129.85 : x - Step 2: Convert to fraction form
2,912,539,041.74/4,368,889,961.37 = 947,392,129.85/x - Step 3: Cross multiply
2,912,539,041.74x = 4,368,889,961.37 × 947,392,129.85 - Step 4: Simplify right side
2,912,539,041.74x = 4,139,051,965,560,763,904 - Step 5: Solve for x
x = 4,139,051,965,560,763,904/2,912,539,041.74 - Step 6: Final answer
x = 1,421,114,672.20
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.